less than 2.8% or ["2.8% is lower than the percent for last quarter]. some uncountable nouns are plural. for instance, "taxes" is a plural noun, but the concept that it represents is uncountable (taxes are not things that you can separate into one, two, three,...)so, you would say my taxes are less than they were last year, not [i]my taxes are fewer than they were last year[i].